Improvement in the construction of an illustrating steam-engine



J. B. HYDE Improvement in the Construction of an IllustratingSteam-Engine No. 132,289. Patented Oct. 15,1872.

9% fl 1' I PATENT OFFICE.

J. BURROWS HYDE, OF NEw YORK, N. Y.

IMPROVEMENT IN THE CONSTRUCTION OF AN ILLUSTRATING STEAM-ENGINE.

Specification forming part of Letters Patent No. 132,289, dated October15, 1872.

To all whom it may concern.-

Be it known that I, J. BURRows HYDE, of

I the city, county, and State of New York, have invented a new, useful,substantial, and cheap method for constructing and combining a workin gsectional model and an elevation drawing of a steam-engine, showing atthe same time the external view and the interior or movable parts inproper position, proportion, and action, as well as the means by whicheach part is actuated, the several parts being distinct and yetmechanically combined and properly connected, as with a Working engineof any required size, so as to clearly demonstrate and familiarlyillustrate each separate function and purpose of the different parts andmovements, and the combination of that most useful and valuable and mostfamiliar of inventions, and yet popularly so little understood orcomprehended.

The purpose of the invention is to have a simple and convenientinstrument for instructing parties unacquainted with the internal partsand action of the steam-engine, and particularly designed for use incolleges and schools.

I make use of proper molds for the several parts, preferring them to becut in cast-iron, into which molds I cast common type-metal; but othermetals or compounds may be employed. The several parts are afterwardproperly united and secured to the plane surface or bottom of a coveredbox of wood or other material in such a manner as to allow all themoving parts to be actuated freely and properly when motion or rotationis given to a crank or other device turned by the hand, whichcontrivance should be at the back or on the side of the model.

The box I prefer to be about twelve inches square on the inside and oneand a half inch deep, with a cover hinged on the edge below the modelwhen held in an upright position. The drawing or exterior elevation ispasted upon the inside of the cover,-so that when the model is heldupright each part of the exterior views shall appear under its properposition in the working plan.

Printed explanations, with letters of reference, and a simple method forcalculating the proper proportions of the several parts of asteam-engine, should be attached to the back or plane work of the box,as practically useful to young machinists.

I claim as my invention A sectional working model of a steam-en: gine,constructed, mounted, and inclosed in a portable case or box in themanner described, as a new article of manufacture.

J. BURROWS HYDE.

Witnesses L. O. WARNER, FREDERIc HARVEY.

